CN102319456A

CN102319456A - Ophthalmic surgical cassette and system

Info

Publication number: CN102319456A
Application number: CN2011103177226A
Authority: CN
Inventors: J·T·沃尔特; M·艾斯丘
Original assignee: Bausch and Lomb Inc
Current assignee: Bausch and Lomb Inc
Priority date: 2006-06-10
Filing date: 2007-06-06
Publication date: 2012-01-18
Anticipated expiration: 2027-06-06
Also published as: ES2643470T3; CA2652070C; KR20130123472A; ES2651452T3; DE602007011605D1; AU2007256690A1; ATE493159T1; JP2009539563A; HK1130706A1; KR101435356B1; JP5383487B2; US20120330254A1; EP2389963A1; WO2007143677A3; AU2007256690B2; CA2718614A1; CA2652070A1; EP2340857B1; EP2389964A1; EP2340857A3

Abstract

A cassette (74) for use with an ophthalmic surgical pump (16) for collecting aspirant fluid and tissue from a patient's eye includes a rigid walled container (18) having an interior volume (42). At least one tapered alignment slot (20) is formed in a side wall of the container (18) and extends from a back wall (24) towards a front wall (26). An irrigation and aspiration manifold base (50) is removeably attached to the container (18). An aspiration path (46) is formed within the container (18) for receiving the aspiration fluid and the tissue from the eye and directing the flow of fluid towards a front half of the container (18) before the fluid and tissue collects within a majority of the interior volume (42) of the container (18). A fluid level indicator (34) is formed on a wall (22) of the container (18), such that an associated photo-detector (86) of the pump (16) may determine a level of fluid in the container (18).

Description

Ophthalmic surgical cassette and system

The application be that June 6, application number in 2007 are 200780021213.0 the applying date, denomination of invention divides an application for the application for a patent for invention of " ophthalmic surgical cassette and system ".

Technical field

The present invention relates to ophthalmic surgical cassette and pumping system.More particularly, the application relates to Venturi tube ophthalmic surgical cassette and pump.

Background technology

Know the ophthalmic surgical cassette that is used for various pumping systems, comprises venturi pump in this area.Be particularly useful for this surgical cassette of venturi pump, generally include the box with rigid walls, it can be connected to the irrigation/aspiration pipeline.In turn, pipeline is connected to the surgical operation handpiece that the surgeon uses usually during ophthalmologic operation.Then, the box with rigid walls comprises the major part of the internal capacity of box or container, and it is used for handling after a while from operative site collection draw fluid and tissue fluid.This box can be disposable or reusable.This box with rigid walls is fixed in the pump assembly usually, and thereby it is especially important that this box has Level Detection and is configured to prevent that box from overflowing and leaking surgical fluid causes biohazard and possibly destroy pump to the inside of pump.

Existing known fluid level detection schemes such as disclosed in United States Patent (USP) 4773897, is wherein used float ball in the chamber of definition of box.Subsequently, float ball increases along with liquid level in the box and floats, and finally blocks the path between light source and the phototransistor, and the two combination is to form level sensor.In case the float ball blocks light arrives the path of photo eye, the system triggers pump stops so, and stops suction, empties up to box.Though this float ball configuration has been used for many years and has been reliably, along with the time goes over, float ball is soaked in a way and is different because of ball at production period from the accurate amount of floating of ball.Thereby the precise height of box inner fluid is not as one man by the configuration of this float ball and light detection device and confirm.

For the pump box, generally include the suction and the flushing pipe that are connected to box.When needs emptied box, this pipeline need be pulled the coupling claw that breaks away from the box usually.Make this pipeline tractive break away from claw and understand some difficulty and consuming time, and be not easy to realize.Thereby what be fit to is to have the collection box, and wherein most of pipeline need not remove its connection.This will accelerate operative speed, and make it be used for further operation for the operating room personnel are more friendly to be ready to said box in time.

The surgical cassette of prior art usually will be from the fluid of suction tube from pouring into the box towards the box rear portion and away from operator's position.At intra-operative, the surgical operation control station has pick off and indicator icon and the alarm that can hear usually, when the hypothesis suction streams has stopped, using, also suction channel is applied vacuum simultaneously.This configuration is enough to allow the safety operation surgical cassette usually.Yet the operator needs is to be easy to observe in the internal capacity of container that fluid flows into box so that simple and visual feedback easily to be provided to the operator, promptly has draw fluid stream.

The shape of typical prior art surgical cassette is a three-dimensional rectangle basically.Required is the aligning of some types to be provided or to insert to guide to help the operator correctly box to be inserted in its each pump.

Thereby, need a kind of improved ophthalmic surgical cassette and system.

Summary of the invention

For this reason, the present invention asks for protection a kind of box of using with the ophthalmologic operation pump of being used for, and aspirated liquid and the tissue from patient's eye of being used to collect comprises: have the container of rigid walls, have internal capacity; And flushing and aspiration manifold base, be connected to container removedly, be used for allowing to empty said box, and need not to make flushing and suction channel to break away from manifold base at intra-operative.

Preferably, container comprises roof, and roof has first and second portion, and first is used for admitting flushing and aspiration manifold base, and second portion has the structure of the suction channel that is used to be connected to manifold and is used to be connected to the Venturi tube pump structure.

Preferably, manifold base also comprises perfusion inlet tube, perfusion outlet, fluid discharge pipe and first suction tube.

Preferably, also comprise second suction tube according to box of the present invention.

Preferably, manifold base also comprises and is connected to perfusion inlet tube, perfusion outlet and the irrigation manifold of fluid discharge pipe and the aspiration manifold that is connected to first suction tube and fluid discharge pipe.

Preferably, aspiration manifold also is connected to second suction tube.

Description of drawings

Fig. 1 is the perspective view according to ophthalmic surgical system of the present invention;

Fig. 2 is the perspective view according to the part of ophthalmic surgical system of the present invention;

Fig. 3 is the cross section view of Fig. 2;

Fig. 4 is the perspective view of the opposition side of Fig. 3;

Fig. 5 is the front view of Fig. 4;

Fig. 6 is the perspective view according to the part of ophthalmic surgical cassette of the present invention;

Fig. 7 is the perspective view according to ophthalmic surgical cassette of the present invention;

Fig. 8 is the top view of the alternative of Fig. 6;

Fig. 9 is the partial cross-section of a part of the box of Fig. 2;

Figure 10 is the diagram according to detection configuration of the present invention;

Figure 11 is the alternative according to liquid level indicator of the present invention;

Figure 12 is the diagram of the level detection of Figure 11; And

Figure 13 is that the box that is used for the photodetector of alternative according to the present invention detects.

The specific embodiment

Fig. 1 shows the perspective view according to ophthalmologic operation control station of the present invention (console) 10.Control station 10 comprises main body or frame 12, display 14 and pump 16.Control station 10 can also comprise IV electrode assemblie, other ophthalmologic operation module such as optical module, shears module, second pump and other typical ophthalmologic operation module, and all these parts are not shown.The container with rigid walls 18 with the detailed described internal capacity of hereinafter forms the part of box, is used for using with ophthalmologic operation pump such as pump 16, and inserts usually in the pump 16.Container is preferably processed by the transparent plastic material that is applicable to ophthalmologic operation, as as known in the art.Container or box 18 preferably include the alignment slot with tapering 20 at least one sidewall that is formed on container 18 22.Groove preferably extends towards antetheca 26 from rear wall 24.Irrigation manifold base (hereinafter will be described in detail) preferably is connected to container 18 removedly, and uses claw (barb) 28 and notch 30 to remain on the container 18.Suction path is preferably formed in the container 18, is used for through 32 aspirated liquid and the tissues that receive from eyes that enter the mouth.Suction path (hereinafter will be described in detail) preferably flows the first half of guiding container into fluid at fluid and tissue collecting before in the major part of the internal capacity of container 18.Liquid level indicator 34 is preferably formed on the wall 22 of container 18, thereby the relevant photoelectric detector (hereinafter will be described in detail) of pump can be confirmed fluidic height in the container 18.

Container 18 comprises roof 36; Roof has first and is used for admitting flushing and aspiration manifold base; Roof also has second portion, and this second portion has the structure 32 of the suction channel that is used to be connected to manifold, and roof also has and is used to be connected to Venturi tube pump structure 38.Structure 38 is the hole normally, and gas is blown above that so that in container 18, form the Venturi tube suction.

Groove 20 with tapering one of preferably is formed in the alignment slot that a pair of on the opposing sidewalls of container 18 have tapering.Groove preferably has the U-shaped that extends out basically.These grooves 20 help the user that container 18 is inserted in the pump 16, and guarantee container 18 correctly is aligned in the pump 16.Fig. 3 shows the profile perspective of container 18, and said container 18 has sidewall 40 on sidewall 22 opposite sides.Fig. 3 also illustrates unshowned other preferred alignment groove 20 among Fig. 2.

Fig. 4 shows the profile perspective of the opposite side of view shown in Fig. 3.Fig. 4 shows the most half the of container 18 internal capacities at arrow 42 places.As shown in the figure, container 18 generally includes and spreads all over a plurality of rigid support member 44 that container 18 interval are provided with.When in the internal capacity 42 at container 18 during evacuation, these rigid support member 44 prevent that

sidewall

22 and 40 from collapsing.Aspiration path is illustrated in 46 places basically, and aspirated liquid flows in container 18 with being organized on the direction of arrow 48, and container 18 is used for through 32 aspirated liquid and the tissues that receive from eyes that enter the mouth.Aspiration path 46 with the fluid conductance to first half, and preferably near the antetheca 26 of the rear portion guiding container 18 of container 18.Through with fluid conductance forward wall 26, aspiration path 46 allows operators to observe easily whether aspirated liquid flows in the internal capacity 42 of container 18 with tissue at intra-operative.This is especially advantageously, because it provides direct visual feedback to the operator, promptly correctly carries out function in the intra-operative aspiration of tissue.Like this, before fluid and tissue collecting were in the major part of the internal capacity 42 of container 18, aspiration path 46 was with the first half of fluid conductance to container 18.

Fig. 5 is the planar elevation view of the perspective view of Fig. 4, and more clearly shows the aspiration path 46 on the direction of fluid stream at arrow 48 places.

Fig. 6 shows the perspective view according to the preferred embodiment of flushing of the present invention and aspiration manifold base 50.Manifold base 50 comprises the fin (tab) 52 that cooperates with the notch 30 shown in Fig. 2, and pedestal 50 also preferably is engaged between claw 28 and the end face 36, thereby manifold base 50 is firmly held on the container 18.Manifold base 50 makes up to form according to ophthalmic surgical cassette of the present invention with container 18.Manifold base 50 preferably includes flushing inlet tube 54, is used to receive the flushing flow from irrigation source, as well known in the art.Manifold base 50 also preferably includes flushing outlet 56, is used to allow flush fluid to flow into the ophthalmic operating set that uses at intra-operative from managing 54.Manifold base 50 also preferably includes aspiration line 58 and suction tube 60, is used for from the surgery location (not shown) aspirated liquid and tissue being sent into container 18.Suction tube 60 is connected to inlet 32.Manifold base 50 also preferably includes aspiration manifold 62, and aspiration manifold 62 is connected aspiration line 58 with backflow with suction tube 60 with liquid discharge tube road 64.Block (block) 66 and 68 provides contact surface to conventional compression valve, be used for open and close refluxing and discharge line 64 and aspiration line 60, and in a usual manner via pump 16 with perform the operation control station 10 and controlled.Flushing inlet tube 54 also preferably includes and cooperates with compression valve and is used to open and close flush fluid and flows.Irrigation manifold 70 is connected with flushing inlet tube 54 reflux line 64 with flushing outlet 56.Fig. 6 shows the manifold base 50 with other dead slot 72, and said dead slot 72 can be used for alternative of the present invention, will describe in detail at Fig. 8 hereinafter.

Manifold base 50 allow expediently flushing entrance and

exit pipe

54 and 56 and aspiration line 58 during whole surgery, keep being connected to manifold base 50, as stated.If container 18 will be filled with fluid and tissue and need empty, simple press of tabs 52 with make pipeline 60 break away from containers 18 separately, will allow operator's empty container 18 and apace manifold base 50 will be connected to container 18 again together with suction tube 60.Like this, container 18 can empty fast and expediently, and need not to carry out clumsy with usually for several times difficulty remove

pipeline

54,56 and 58, as needed in the art.

Fig. 7 is the perspective view according to box 74 of the present invention, and it comprises container 18 and manifold base 50, as stated.Box 74 is shown

pipeline

54,56 with whole length and 58 and retainer belt 76, is used for being included in ophthalmic surgical pack.

Fig. 8 shows the top view according to the alternative of manifold base of the present invention.Except manifold base 78 preferably included second aspiration line or pipeline 80, manifold base 78 was identical with above-mentioned pedestal 50.Pipeline 80 is connected to the manifold 82 of alternative, and it is similar to above-mentioned manifold 62.According to performed operation, the surgeon possibly be more prone to second aspiration line 80, as shown in Figure 8, thereby can connect second surgical handpiece, and need not pipeline is removed from the surgical handpiece that is connected to aspiration line 58.Fig. 8 also illustrates preferred compression valve position expediently, shown in 84 place's black " X ".

Fig. 9 shows the partial cut-away cross-section of container 18, liquid level indicator 34 is shown cooperates with the associated photo-detector 86 of pump 16.Liquid level indicator 34 is preferably formed on the wall 22 of container 18, thereby the associated photo-detector 86 of pump 16 can be confirmed the liquid level in the container.Liquid level indicator 34 is basically as prism (prism) work, to detect the liquid level in the container 18.

Liquid level indicator 34 is the parts with recess; The a pair of angled sidepiece 90 and 92 that has basically the face 88 parallel and face 88 is connected to the wall 22 of container 18 as shown in the figure with the wall of container 18 22; With the formation prism, thus can be by the liquid level of photoelectric detector 86 definite boxes 74.

Photoelectric detector 86 can be suitable imaging device and light source, such as charge coupled device (CCD) or CMOS device, perhaps preferably can be contact image sensor.Contact image sensor is the one-dimensional array that is used to create the photoelectric detector of image basically.An instance of contact image sensor is from the obtainable Model M106-A6-R1 of COMS Sensors company module.This contact image sensor size is less relatively, and is advantageously used among the present invention.Though as stated, also can use other photoelectric detector according to the present invention.

Figure 10 shows the light emission figure through liquid level indicator, such as 34 (prism of Figure 10 is not depicted as the size identical with Fig. 9).Liquid level indicator 34 and photoelectric detector 86 cooperations, thus liquid level detected through the light transmissive physical phenomenon of passing prism and have between the material boundary of different refractivity.As what those skilled in the art will recognize that, when light intersects with the border between right angle and the two kinds of media, nearly all light all transmission through this border.Yet, when light when intersecting less than the border between 90 ° angle and the two kinds of media, some light transmissions, and some luminous reflectance.Change of refractive has been confirmed the transmission of how much light and how many luminous reflectance between the angle of light and the two kinds of media.This principle is applied to the present invention, to detect the liquid level in the box 74.Liquid level comprises two groups of boundary conditions in the photoelectric detector 86 detection boxes 74 of use such as contact image sensor.One group of boundary condition is below liquid level, and another group boundary condition is present on the liquid level.Two groups of boundary conditions have two interfaces.An interface is between air and box material, and another interface is between box material and box inclusions, i.e. aspirated liquid and tissue or air.First interface between air and the box material is insignificant, because the amount of light of reflection is with identical, and does not receive the influence of box inclusions.Second interface between box material and the box inclusions is most important, because catoptrical amount is directly relevant with the box inclusions.Each bar line of Figure 10 shows catoptrical this difference.

Further consider above-mentioned reflex strength notion, through customization reflection and transmission coefficient, the fluid that can realize existing and the more big difference between the non-existent fluidic intensity.This can be through feature molded is realized on the box wall, and is as above said with reference to figure 9.The light quantity that photoelectric detector 86 receives the light quantity direct and reflection of media boundary is proportional.Through keeping watch on the light quantity that each photoelectric detector place receives, can confirm liquid level.The point that liquid level will change corresponding to intensity of reflected light.

Figure 11 and 12 shows the alternative according to liquid level indicator of the present invention.Figure 11 shows the liquid level indicator 94 with raised zones 96, thereby raised zones has amplified any fluid in the container, allows photoelectric detector 100 to confirm the liquid level of box 101 thus.

Liquid level indicator

94 and 98 cooperations of contrast colour band, thus there is fluidic band 98 in raised zones 96 amplifications, do not have fluidic band and do not amplify, as shown in Figure 12.Subsequently, photoelectric detector 100 can confirm that the band that amplifies changes over the point of the band that does not amplify.Raised zones 96 is lens basically, and it utilizes the difference of refractive index between air and the fluid.In the embodiment of Figure 11, be molded with raised zones 96 like compartmentalized box for holding assorted fruits and candies, it is enlarged image, for example is positioned at the band 98 on the opposite side of box.Figure 13 shows according to still another embodiment of the invention.Figure 13 comprises the partial elevation view of similar above-mentioned box sidewall 102, and comprises the liquid level indicator 104 that is similar to aforesaid indicator 34.Indicator 104 also comprises geometric figure 106, perhaps other sign, and it can be used for discerning in the operation type with the box that uses.This identification is easily for system user, because can distinguish later box and more preceding box, and the surgeon is presented in correct surgery setting.Sign 106 preferably is arranged in indicator 104, is in the position that does not need level detection.

Thereby having shown ophthalmic surgical cassette of the present invention and system, its change will be tangible to those skilled in the art.This change will fall into the scope of the present invention and said claim.

Claims

1. one kind is used for the box that uses with the ophthalmologic operation pump, and aspirated liquid and the tissue from patient's eye of being used to collect comprises:

Have the container of rigid walls, have internal capacity; And

Flushing and aspiration manifold base are connected to container removedly, are used for allowing to empty said box at intra-operative, and need not to make flushing and suction channel to break away from manifold base.

2. box according to claim 1; It is characterized in that; Container comprises roof; Roof has first and second portion, and first is used for admitting flushing and aspiration manifold base, and second portion has the structure of the suction channel that is used to be connected to manifold and is used to be connected to the Venturi tube pump structure.

3. box according to claim 2 is characterized in that, manifold base also comprises perfusion inlet tube, perfusion outlet, fluid discharge pipe and first suction tube.

4. box according to claim 3 is characterized in that, also comprises second suction tube.

5. box according to claim 3 is characterized in that, manifold base also comprises being connected to pours into inlet tube, perfusion outlet and the irrigation manifold of fluid discharge pipe and the aspiration manifold that is connected to first suction tube and fluid discharge pipe.

6. box according to claim 4 is characterized in that aspiration manifold also is connected to second suction tube.